SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Ghio F.) "

Sökning: WFRF:(Ghio F.)

  • Resultat 11-19 av 19
  • Föregående 1[2]
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
11.
  • De Paolis, L., et al. (författare)
  • Kaonic atoms measurement at DA Φ NE : SIDDHARTA and SIDDHARTA-2
  • 2019
  • Ingår i: International Scientific Meeting on Nuclear Physics, RABIDA 2018,Huelva, Spain,2018-06-18 - 2018-06-22. - : Springer Science and Business Media, LLC. ; 225, s. 191-195
  • Konferensbidrag (refereegranskat)abstract
    • Light kaonic atoms studies provide the unique opportunity to perform experiments equivalent to scattering at threshold, being their atomic binding energies in the keV range. High precision atomic X-rays spectroscopy ensures that the energy shift and broadening of the lowest-lying states of the kaonic atoms, induced by the strong interaction between the kaon and nucleus, can be detected. Kaonic hydrogen and kaonic deuterium are the lightest atomic systems and their study deliver the isospin-dependent kaon-nucleon scattering lengths. The SIDDHARTA collaboration was able to perform the most precise kaonic hydrogen measurement to date, together with an exploratory measurement of kaonic deuterium. The measurement of the kaonic deuterium will be realized in the near future by a major upgrade of SIDDHARTA: SIDDHARTA-2. In this paper an overview of the main results obtained by SIDDHARTA together with the future plans are presented.
  •  
12.
  • Marton, J., et al. (författare)
  • Spectroscopy of kaonic atoms at DAFNE and J-PARC
  • 2019
  • Ingår i: 15th International Workshop on Meson Physics, MESON 2018,Krakow, Poland,2018-06-07 - 2018-06-12.
  • Konferensbidrag (refereegranskat)abstract
    • The interaction of antikaons (K) with nucleons and nuclei in the low-energy regime represents a very active research field in hadron physics. A unique and rather direct experimental access to the antikaon-nucleon scattering lengths is provided by precision X-ray spectroscopy of transitions in low-lying states in the lightest kaonic atoms (i.e. kaonic hydrogen and deuterium). In the SIDDHARTA experiment at the electron-positron collider DAFNE of LNFINFN we measured the most precise values of the strong interaction observables in conic hydrogen. The strong interaction on the 1s ground state of the electromagnetically bound K-p atom causes an energy shift and broadening of the 1s state. SIDDHARTA will extend the spectroscopy to kaonic deuterium to get access to the antikaon-neutron interaction and thus the isospin dependent scattering lengths. At J-PARC a kaon beam is used in a complementary experiment with a different setup for spectroscopy of kaonic deuterium atoms. The talk will give an overview of the of the upcoming experiments SIDDHARTA and the complementary experiment at J-PARC.Furthermore, the implications of the experiments for the theory of low-energy strong interaction with strangeness will be discussed.
  •  
13.
  • Scordo, A., et al. (författare)
  • The kaonic atoms research program at DAΦNE : From SIDDHARTA to SIDDHARTA-2
  • Ingår i: 2017 International Conference on Exotic Atoms and Related Topics, EXA 2017,Vienna, Austria,2017-09-11 - 2017-09-15. - : EDP Sciences. ; 181
  • Tidskriftsartikel (refereegranskat)abstract
    • The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms, in which one electron is replaced by a negatively charged kaon, is a unique tool to provide precise information on this interaction; the energy shift and the broadening of the low-lying states of such atoms, induced by the kaon-nucleus hadronic interaction, can be determined with high precision from the atomic X-ray spectroscopy, and this experimental method provides unique information to understand the low energy kaon-nucleus interaction at the production threshold. The lightest atomic systems, like the kaonic hydrogen and the kaonic deuterium deliver, in a model-independent way, the isospin-dependent kaon-nucleon scattering lengths. The most precise kaonic hydrogen measurement to-date, together with an exploratory measurement of kaonic deuterium, were carried out in 2009 by the SIDDHARTA collaboration at the DAΦNE electron-positron collider of LNF-INFN, combining the excellent quality kaon beam delivered by the collider with new experimental techniques, as fast and very precise X-ray detectors, like the Silicon Drift Detectors. The SIDDHARTA results triggered new theoretical work, which achieved major progress in the understanding of the low-energy strong interaction with strangeness reflected by the antikaon-nucleon scattering lengths calculated with the antikaon-proton amplitudes constrained by the SIDDHARTA data. The most important open question is the experimental determination of the hadronic energy shift and width of kaonic deuterium; presently, a major upgrade of the setup, SIDDHARTA-2, is being realized to reach this goal. In this paper, the results obtained in 2009 and the proposed SIDDHARTA-2 upgrades are presented.
  •  
14.
  • Sirghi, D., et al. (författare)
  • Experiments with low-energy kaons at the DAΦNE Collider
  • . - 1
  • Ingår i: 13th International Conference on Beauty, Charm and Hyperon Hadrons, BEACH 2018,Peniche, Portugal,2018-06-17 - 2018-06-23. - : IOP Publishing. ; 1137
  • Konferensbidrag (refereegranskat)abstract
    • The investigations of light kaonic atoms offer the unique opportunity to perform experiments equivalent to scattering at vanishing relative energies, being their atomic binding energies in the keV range. This allows the determination of the hadron-nucleus interaction at threshold without the need of an extrapolation to zero relative energy. The energy shift and broadening of the lowest-lying states of such atoms, induced by the kaon-nucleus strong interaction, can be determined with high precision from atomic X-ray spectroscopy. The lightest atomic systems, kaonic hydrogen and kaonic deuterium, deliver the isospin-dependent kaon-nucleon scattering lengths. The most precise kaonic hydrogen measurement to date, together with an exploratory measurement of kaonic deuterium, were carried out by the SIDDHARTA collaboration at the DAΦNE electron-positron collider of LNF-INFN. The measurement of kaonic deuterium will be realized in the near future by SIDDHARTA-2, a major upgrade of SIDDHARTA. A correlated study of the kaon-nuclei interaction at momenta below 130 MeV/c is carried out by the AMADEUS collaboration, using the KLOE detector and dedicated targets inserted near the collider interaction point. In this paper an overview of the main results obtained by SIDDHARTA together with the future plans, the SIDDHARTA-2 experiment and with the preliminary results of the study of charged antikaons interacting with nuclei by the AMADEUS collaboration, are shown.
  •  
15.
  • Sirghi, D., et al. (författare)
  • Kaonic atoms measurements at the DAΦNE Collider
  • 2018
  • Ingår i: 13th Quark Confinement and the Hadron Spectrum, Confinement 2018,Maynooth, Ireland,2018-07-31 - 2018-08-06. ; 336
  • Konferensbidrag (refereegranskat)abstract
    • The DAΦNE electron-positron collider of the Laboratori Nazionali di Frascati of INFN is a worldwide unique low-energy kaon source, which is being used to produce and to study kaonic atoms by the SIDDHARTA collaboration. The X-ray measurements of kaonic atoms play an important role for understanding the low-energy QCD in the strangeness sector. Significant achievements have been obtained by the SIDDHARTA experiment, among which: the most precise kaonic hydrogen measurement of the 1s level shift and width induced by the presence of the strong interaction; an upper limit of the X-ray yield for kaonic deuterium K-series; the accurate measurement of the 2p level shift and width of kaonic helium-4 and kaonic helium-3; yields of various light kaonic atoms transitions. Using the experience gained with SIDDHARTA experiment, the first kaonic deuterium measurement is in preparation in the framework of the SIDDHARTA-2 experiment, with the goal to determine the antikaon-nucleon isospin dependent scattering lengths, which is possible only by combining the K−p and the upcoming K−d results. An overview of the experimental results of SIDDHARTA and an outlook to SIDDHARTA-2 experiments are given in this paper.
  •  
16.
  • Tatsuno, H., et al. (författare)
  • Future projects of light kaonic atom X-ray spectroscopy
  • Ingår i: EPJ Web of Conferences. - : EDP Sciences. - 2101-6275. ; 130
  • Tidskriftsartikel (refereegranskat)abstract
    • X-ray spectroscopy of light kaonic atoms is a unique tool to provide precise information on the fundamental KN interaction at the low-energy limit and the in-medium nuclear interaction of K-. The future experiments of kaonic deuterium strong-interaction shift and width (SIDDHARTA-2 and J-PARC E57) can extract the isospin dependent K-N interaction at threshold. The high-resolution X-ray spectroscopy of kaonic helium with microcalorimeters (J-PARC E62) has the possibility to solve the long-standing potential-strength problem of the attractive K--nucleus interaction. Here, the recent experimental results and the future projects of X-ray spectroscopy of light kaonic atoms are presented.
  •  
17.
  •  
18.
  •  
19.
  • Ferrara, Francesco, et al. (författare)
  • The Right Heart International Network (RIGHT-NET) : Rationale, Objectives, Methodology, and Clinical Implications
  • Ingår i: Heart Failure Clinics. - : Elsevier Inc.. - 1551-7136. ; 14:3, s. 443-465
  • Forskningsöversikt (refereegranskat)abstract
    • The Right Heart International Network is a multicenter international study aiming to prospectively collect exercise Doppler echocardiography tests of the right heart pulmonary circulation unit (RHPCU) in large cohorts of healthy subjects, elite athletes, and individuals at risk of or with overt pulmonary hypertension. It is going to provide standardization of exercise stress echocardiography of RHPCU and explore the full physiopathologic response.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 11-19 av 19
  • Föregående 1[2]
 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy